Autonomous Vehicles, Volume 2

2A Dual-Polarized Antenna With Circular Parasitic Element for Autonomous Vehicle

Manish Varun Yadav¹* and Sudeep Baudha²

¹Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India

²Department of Electrical & Electronics Engineering, Goa Campus, BITS, Pilani, Goa, India

Abstract

A dual-polarized antenna with a circular parasitic element is presented for autonomous vehicles capable of radiating 2.4 GHz signals. A square dual-port structure with circularly cut is used to match the impedance in the broadband range, and parasitic elements are also used for better resonance at 2.4 GHz frequency. The proposed antenna is simulated with an FR4 substrate. The optimum dimensions of the designed antenna are 60*60*2.5 cubic millimeters. The proposed structure has dual linear polarization, and it has a high gain of up to 6.8 dBi. The presented antenna is capable to receive or transmit a 2.4 GHz signal, which is very useful for WLAN applications. In any condition, the signal remains constant because of its dual-port. All the parameters imply that this kind of antenna is useful for an autonomous vehicle.

Keywords: Autonomous vehicle antenna, dual-polarization, circular parasitic element

2.1 Introduction

Smart vehicles are in great demand in the present scenario, and they are connected with GPS and Wi-Fi; for such connectivity, a robust antenna is required, which will provide good signal connectivity ...